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Generation of Double Focal Spots by Focusing Azimuthally Polarized Double Ring Shaped Beam with Annular Classical Axicon

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Abstract

Double focal spots have been generated in the focal region of annular axicon by focusing azimuthally polarized double-ring-shaped (APDRS) beam. Our results indicate that the properties of twin spots are affected by axicon and beam parameters.

© 2022 The Author(s)

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